CN110515548B - Method for avoiding waste of third-party cloud storage space - Google Patents

Method for avoiding waste of third-party cloud storage space Download PDF

Info

Publication number
CN110515548B
CN110515548B CN201910754227.8A CN201910754227A CN110515548B CN 110515548 B CN110515548 B CN 110515548B CN 201910754227 A CN201910754227 A CN 201910754227A CN 110515548 B CN110515548 B CN 110515548B
Authority
CN
China
Prior art keywords
file
storage space
party cloud
cloud storage
network address
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910754227.8A
Other languages
Chinese (zh)
Other versions
CN110515548A (en
Inventor
毕明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Wanpeng Digital Intelligence Technology Co ltd
Original Assignee
Zhejiang Wanpeng Education Science And Technology Stock Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Wanpeng Education Science And Technology Stock Co ltd filed Critical Zhejiang Wanpeng Education Science And Technology Stock Co ltd
Priority to CN201910754227.8A priority Critical patent/CN110515548B/en
Publication of CN110515548A publication Critical patent/CN110515548A/en
Application granted granted Critical
Publication of CN110515548B publication Critical patent/CN110515548B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0602Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0608Saving storage space on storage systems
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0638Organizing or formatting or addressing of data
    • G06F3/064Management of blocks
    • G06F3/0641De-duplication techniques
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0638Organizing or formatting or addressing of data
    • G06F3/0643Management of files
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0668Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/067Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/06Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • H04L67/1097Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

The invention discloses a method for avoiding wasting a third-party cloud storage space. The attributes of the file in the notification message stored in the server are as follows: file hash value, file size, file type, file storage mode, file network address, and whether the file has sent the attribute. According to the method, the file is uploaded to the local server firstly, the user confirms the message to be sent and then uploads the file to the third-party cloud storage space, and therefore the waste of the third-party storage space and the flow caused by file deletion and file modification before the message is sent is avoided. When the files with the same file hash value appear, the uploading operation is not carried out any more, the efficiency is improved, and the waste of third-party storage space and flow caused by the uploading of the repeated files is avoided.

Description

Method for avoiding waste of third-party cloud storage space
Technical Field
The invention relates to a computer application technology, in particular to a method for avoiding waste of a third-party cloud storage space.
Background
A large amount of file resources, such as various file resources of pictures, videos, and documents, which may be attached when multimedia messages are sent, are generated during the use of various web applications and app applications. Storing these accessory resources over time requires a large amount of storage space. Many products will purchase specialized third party cloud storage space, and more usage of third party cloud storage space will of course mean more cost.
The operation of wasting the third-party cloud storage space is described by taking the example that the web application sends the notification message containing the file. In order to improve user experience and reduce response time when a user clicks to send a message, the file is generally required to be asynchronously uploaded to a third-party cloud storage space when the user selects the file, and therefore time-consuming file uploading operation is not required to be performed when the user clicks to send the message. If the user deletes the file, modifies the file and cancels the message sending before clicking the message sending, the file which is originally uploaded to the third-party cloud storage space becomes a useless file, and the third-party cloud storage space is wasted. Or the user selects the same file when sending different notification messages, and the repeated uploading to the third-party cloud storage space also causes waste.
Disclosure of Invention
Aiming at the scene, the invention provides a method for avoiding wasting the third-party cloud storage space. According to the invention, while user experience is ensured, useless files and repeated files can be prevented from being uploaded to a third-party cloud storage space, so that the cloud storage cost is reduced.
Taking the example that the web application sends the notification message containing the file as an example for explanation:
the attributes of the file in the notification message stored in the server are as follows: file hash value, file size, file type, file storage mode, file network address, and whether the file has been sent.
Step 1, when a user selects a file, calculating a hash value, size and type of the file by using a web browser, accessing a local server, inquiring whether the local server already stores the file according to the hash value of the file, if so, setting a file storage mode as local server storage, and setting a file network address as a network address corresponding to a local server storage path, wherein the file uploading operation is not needed at this moment. If the file does not exist in the third-party cloud storage space, whether the file exists in the third-party cloud storage space is inquired, if the file exists in the third-party cloud storage space, the file storage mode is set to be the third-party cloud storage space for storage, the network address of the file is set to be the network address corresponding to the third-party cloud storage space, and at the moment, file uploading operation is not needed. If the file does not exist in the local server and the third-party cloud storage space, a temporary directory is created in the local server, a subdirectory A named by a date is created under the temporary directory, the format of the date is YYYYMMDD, and the file is uploaded to the directory A of the local server by utilizing the mature block uploading technology. After uploading successfully, setting the file storage mode as local server storage, setting the file network address as the network address corresponding to the local server storage path, and setting whether the file has been sent with the attribute as 'no'.
And 2, after the file storage mode and the file network address are obtained in the step 1, storing the hash value, the size and the type, the storage mode and the network address of the file into a database. And the user clicks to send the message, after the message is successfully sent, whether the file is sent or not is set as 'yes', and the receiver accesses the file according to the network address of the file. At this time, the storage mode of the file will possibly be local server storage or third-party cloud storage space storage according to different situations in step 1. If the storage mode is the third-party cloud storage space storage, other operations on the file are not needed. If the storage mode is the storage of the local server, a system task of uploading files to the third-party cloud storage space is started, whether the same files exist in the third-party cloud storage space is inquired again according to the hash value of the files in the first step of the task, if yes, the task is terminated, the file storage mode is updated to be the storage of the third-party cloud storage space, and the network address of the files is set to be the network address corresponding to the third-party cloud storage space. And if the file does not exist in the third-party cloud storage space, uploading the file to the third-party cloud storage space, after the file is uploaded successfully, storing the updated file in the third-party cloud storage space, and setting the network address of the file as the network address corresponding to the third-party cloud storage space.
And 3, in the step 1, if the file does not exist in the local server and the third-party cloud storage space, after the file is successfully uploaded to the temporary directory of the local server, if the user selects to delete the multimedia file and modify the multimedia file, directly deleting or modifying the file stored in the local server. If the user cancels the sending of the notification message, the system starts the task of deleting the files in the temporary directory every day because the files stored in the local server are stored in the subdirectory A named by the date in the step 1, and the redundant files are ensured to be deleted.
The task flow of deleting the temporary directory file is as follows:
and acquiring the current system date C and the current system date D, wherein the format is YYYYMMDD, traversing the subdirectories of the temporary directory, and if the temporary directory has the subdirectory named D, traversing the subdirectory to acquire the network addresses corresponding to all files under the subdirectory. And inquiring the database according to the network address of the file, directly deleting the file if no record exists, and judging whether the file can be deleted according to whether the file has sent the attribute if the record exists. If the sent attribute is 'no', the file is directly deleted, and if the sent attribute is 'yes', the file in the message record points to the address, and the file cannot be deleted. The recorded situation may be that the system task of uploading the file to the third-party cloud storage space in step 2 fails to upload, at this time, the file is copied to the subdirectory with the name of C, the network address of the file recorded in the database is updated at the same time, and then the system task of uploading the file to the third-party cloud storage space is started.
The invention has the following beneficial effects:
according to the method, the file is uploaded to the local server firstly, the user confirms the message to be sent and then uploads the file to the third-party cloud storage space, and therefore the waste of the third-party storage space and the flow caused by file deletion and file modification before the message is sent is avoided.
When the files with the same file hash value appear, the uploading operation is not carried out any more, the efficiency is improved, and the waste of third-party storage space and flow caused by the uploading of the repeated files is avoided.
Detailed Description
A method for avoiding wasting a third-party cloud storage space is capable of preventing useless files and repeated files from being uploaded to the third-party cloud storage space while ensuring user experience, and therefore cloud storage cost is reduced.
Taking the example that the web application sends the notification message containing the file as an example for explanation:
the attributes of the file in the notification message stored in the server are as follows: file hash value, file size, file type, file storage mode, file network address, and whether the file has been sent.
Step 1, when a user selects a file, calculating a hash value, size and type of the file by using a web browser, accessing a local server, inquiring whether the local server already stores the file according to the hash value of the file, if so, setting a file storage mode as local server storage, and setting a file network address as a network address corresponding to a local server storage path, wherein the file uploading operation is not needed at this moment. If the file does not exist in the third-party cloud storage space, whether the file exists in the third-party cloud storage space is inquired, if the file exists in the third-party cloud storage space, the file storage mode is set to be the third-party cloud storage space for storage, the network address of the file is set to be the network address corresponding to the third-party cloud storage space, and at the moment, file uploading operation is not needed. If the file does not exist in the local server and the third-party cloud storage space, a temporary directory is created in the local server, a subdirectory A named by a date is created under the temporary directory, the format of the date is YYYYMMDD, and the file is uploaded to the directory A of the local server by utilizing the mature block uploading technology. After uploading successfully, setting the file storage mode as local server storage, setting the file network address as the network address corresponding to the local server storage path, and setting whether the file has been sent with the attribute as 'no'.
And 2, after the file storage mode and the file network address are obtained in the step 1, storing the hash value, the size and the type, the storage mode and the network address of the file into a database. And the user clicks to send the message, after the message is successfully sent, whether the file is sent or not is set as 'yes', and the receiver accesses the file according to the network address of the file. At this time, the storage mode of the file will possibly be local server storage or third-party cloud storage space storage according to different situations in step 1. If the storage mode is the third-party cloud storage space storage, other operations on the file are not needed. If the storage mode is the storage of the local server, a system task of uploading files to the third-party cloud storage space is started, whether the same files exist in the third-party cloud storage space is inquired again according to the hash value of the files in the first step of the task, if yes, the task is terminated, the file storage mode is updated to be the storage of the third-party cloud storage space, and the network address of the files is set to be the network address corresponding to the third-party cloud storage space. And if the file does not exist in the third-party cloud storage space, uploading the file to the third-party cloud storage space, after the file is uploaded successfully, storing the updated file in the third-party cloud storage space, and setting the network address of the file as the network address corresponding to the third-party cloud storage space.
And 3, in the step 1, if the file does not exist in the local server and the third-party cloud storage space, after the file is successfully uploaded to the temporary directory of the local server, if the user selects to delete the multimedia file and modify the multimedia file, directly deleting or modifying the file stored in the local server. If the user cancels the sending of the notification message, the system starts the task of deleting the files in the temporary directory every day because the files stored in the local server are stored in the subdirectory A named by the date in the step 1, and the redundant files are ensured to be deleted.
The task flow of deleting the temporary directory file is as follows:
and acquiring the current system date C and the current system date D, wherein the format is YYYYMMDD, traversing the subdirectories of the temporary directory, and if the temporary directory has the subdirectory named D, traversing the subdirectory to acquire the network addresses corresponding to all files under the subdirectory. And inquiring the database according to the network address of the file, directly deleting the file if no record exists, and judging whether the file can be deleted according to whether the file has sent the attribute if the record exists. If the sent attribute is 'no', the file is directly deleted, and if the sent attribute is 'yes', the file in the message record points to the address, and the file cannot be deleted. The recorded situation may be that the system task of uploading the file to the third-party cloud storage space in step 2 fails to upload, at this time, the file is copied to the subdirectory with the name of C, the network address of the file recorded in the database is updated at the same time, and then the system task of uploading the file to the third-party cloud storage space is started.

Claims (2)

1. A method for avoiding wasting a third party cloud storage space is characterized by comprising the following steps:
the attributes of the file in the notification message stored in the server are as follows: the file hash value, the file size, the file type, the file storage mode, the file network address and whether the file has sent the attribute or not;
step 1, when a user selects a file, calculating a file hash value, a file size and a file type by using a web browser, accessing a local server, inquiring whether the local server already stores the file according to the file hash value, if so, setting a file storage mode as local server storage, and setting a file network address as a network address corresponding to a local server storage path, wherein the file uploading operation is not needed at this moment; if the file does not exist in the third-party cloud storage space, inquiring whether the file exists in the third-party cloud storage space, if so, setting the file storage mode as third-party cloud storage space storage, and setting the network address of the file as the network address corresponding to the third-party cloud storage space, wherein the file uploading operation is not needed at this moment; if the file does not exist in the local server and the third-party cloud storage space, a temporary directory is created in the local server, a subdirectory A named by a date is created under the temporary directory, the format of the date is YYYYMMDD, and the file is uploaded to the subdirectory A of the local server by utilizing the mature block uploading technology; after uploading successfully, setting a file storage mode as local server storage, setting a file network address as a network address corresponding to a local server storage path, and setting whether a file sent attribute is negative;
step 2, after the file storage mode and the file network address are obtained in the step 1, the file hash value, the file size, the file type, the storage mode and the network address are stored in a database; the user clicks and sends the message, after the message is sent successfully, whether the file has been sent is set as 'yes', and the receiver will access the file according to the network address of the file; at this time, the storage mode of the file is local server storage or third-party cloud storage space storage according to different conditions in step 1: if the storage mode is the third-party cloud storage space storage, other operations do not need to be carried out on the file; if the storage mode is the storage of the local server, starting a system task of uploading files to a third-party cloud storage space, inquiring whether the third-party cloud storage space has the same files or not again according to the hash value of the files in the first step of the task, if so, terminating the task, updating the file storage mode to be the storage of the third-party cloud storage space, and setting the network address of the file as the network address corresponding to the third-party cloud storage space; if the file does not exist in the third-party cloud storage space, uploading the file to the third-party cloud storage space, after uploading is successful, storing the updated file in the third-party cloud storage space, and setting a network address of the file as a network address corresponding to the third-party cloud storage space;
step 3, if the file does not exist in the local server and the third-party cloud storage space in the step 1, after the file is successfully uploaded to the temporary directory of the local server, if the user selects to delete the multimedia file and modify the multimedia file, the file stored in the local server is directly deleted or modified; if the user cancels the sending of the notification message, the system starts the task of deleting the files in the temporary directory every day because the files stored in the local server are stored in the subdirectory A named by the date in the step 1, and the redundant files are ensured to be deleted.
2. The method for avoiding wasting the third party cloud storage space according to claim 1, wherein the task of deleting the files in the temporary directory is performed as follows:
acquiring the date C of the current day and the date D of the previous day of the system, wherein the format is YYYYMMDD, traversing the subdirectories of the temporary directory, and if the subdirectories are named as D, traversing the subdirectories to acquire network addresses corresponding to all files under the subdirectories; inquiring a database according to the network address of the file, if no record exists, directly deleting the file, and if the record exists, judging whether the file can be deleted according to whether the file has sent the attribute; if the sent attribute of the file is 'no', the file is directly deleted, and if the sent attribute of the file is 'yes', the file in the message record points to the address, and the file cannot be deleted; if so, the uploading of the system task of uploading the file to the third-party cloud storage space in the step 2 fails, at this time, the file is copied to the subdirectory with the name of C, the network address of the file recorded in the database is updated at the same time, and then the system task of uploading the file to the third-party cloud storage space is started.
CN201910754227.8A 2019-08-15 2019-08-15 Method for avoiding waste of third-party cloud storage space Active CN110515548B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910754227.8A CN110515548B (en) 2019-08-15 2019-08-15 Method for avoiding waste of third-party cloud storage space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910754227.8A CN110515548B (en) 2019-08-15 2019-08-15 Method for avoiding waste of third-party cloud storage space

Publications (2)

Publication Number Publication Date
CN110515548A CN110515548A (en) 2019-11-29
CN110515548B true CN110515548B (en) 2021-04-06

Family

ID=68626233

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910754227.8A Active CN110515548B (en) 2019-08-15 2019-08-15 Method for avoiding waste of third-party cloud storage space

Country Status (1)

Country Link
CN (1) CN110515548B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111581165B (en) * 2020-04-29 2023-04-21 华南理工大学 Android application external memory limit monitoring tool and application method thereof
CN112422604B (en) * 2020-06-10 2023-02-17 上海哔哩哔哩科技有限公司 File uploading method, device and system and computer equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103237054A (en) * 2013-03-28 2013-08-07 东莞宇龙通信科技有限公司 Photo/video storage method and system, and mobile terminal
CN103955510A (en) * 2014-04-30 2014-07-30 广西电网公司电力科学研究院 Massive electricity marketing data integration method uploaded by ETL cloud platform
CN107786670A (en) * 2017-11-10 2018-03-09 郑州云海信息技术有限公司 A kind of system and method that data and cloud storage R. concomitans are locally stored

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101106550A (en) * 2007-08-31 2008-01-16 金蝶软件(中国)有限公司 Sending method, receiving method and transfer system for large-size message
CN103516774B (en) * 2012-12-28 2017-02-08 Tcl集团股份有限公司 Method and system for eliminating multiplicating storage based on cloud storage
US10635638B2 (en) * 2013-03-13 2020-04-28 Ivanti Us Llc Systems, methods and media for deferred synchronization of files in cloud storage client device
CN103888515B (en) * 2014-02-26 2017-12-12 四川长虹电器股份有限公司 media resource sharing method based on browser
CN105208065A (en) * 2014-06-24 2015-12-30 腾讯科技(深圳)有限公司 File transmitting method and device
US20170208125A1 (en) * 2016-01-19 2017-07-20 Hope Bay Technologies, Inc Method and apparatus for data prefetch in cloud based storage system
CN105610864A (en) * 2016-02-04 2016-05-25 上海盛巨信息技术有限公司 Cloud bridge system for connecting NAS storage to cloud storage
CN107302549B (en) * 2016-04-14 2021-05-25 宾盛科技(武汉)有限公司 Remote data transmission and storage system and method
CN108243207B (en) * 2016-12-23 2019-03-15 中科星图股份有限公司 A kind of date storage method of network cloud disk
CN108876231A (en) * 2017-05-15 2018-11-23 王明文 Blood bag management method and its system based on cloud platform
CN109981702B (en) * 2017-12-27 2022-04-15 深圳市优必选科技有限公司 File storage method and system
CN108804058A (en) * 2018-05-29 2018-11-13 印之梦(北京)科技有限公司 A kind of method and system of cloud printing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103237054A (en) * 2013-03-28 2013-08-07 东莞宇龙通信科技有限公司 Photo/video storage method and system, and mobile terminal
CN103955510A (en) * 2014-04-30 2014-07-30 广西电网公司电力科学研究院 Massive electricity marketing data integration method uploaded by ETL cloud platform
CN107786670A (en) * 2017-11-10 2018-03-09 郑州云海信息技术有限公司 A kind of system and method that data and cloud storage R. concomitans are locally stored

Also Published As

Publication number Publication date
CN110515548A (en) 2019-11-29

Similar Documents

Publication Publication Date Title
US11245758B2 (en) System and method for automatic cloud-based full-data restore to mobile devices
US20190089768A1 (en) Network Folder Synchronization
CN109739815B (en) File processing method, system, device, equipment and storage medium
EP3862883B1 (en) Data backup method and apparatus, and system
EP2073429A1 (en) Data synchronous method, system and apparatus
US10353621B1 (en) File block addressing for backups
US10579595B2 (en) Method and device for calling a distributed file system
CN110515548B (en) Method for avoiding waste of third-party cloud storage space
CN105095300A (en) Method and system for database backup
CN103179185A (en) Method and system for creating files in cache of distributed file system client
CN113923213B (en) Directory-level service quality control method, system and access node
CN108810055B (en) Large file transmission method and device
US20100125591A1 (en) Merging files on storage and retrieve
US10514985B1 (en) Summary file change log for faster forever incremental backup
CN102523301A (en) Method for caching data on client in cloud storage
CN111523151A (en) Method and system for storing electronic data based on block chain technology
CN113254394B (en) Snapshot processing method, system, equipment and storage medium
US11809280B2 (en) Synchronizing expirations for incremental backup data stored on a cloud-based object storage
CN108566421A (en) A kind of network type location mode and system based on Network Attached Storage
CN107846429B (en) File backup method, device and system
CN113609460B (en) Page loading method and system based on user permission
EP2751720B1 (en) Processing communications data
TWI514811B (en) Method for controlling operations of network system
CN106407320B (en) File processing method, device and system
CN110888847A (en) Recycle bin system and file recycling method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 12 / F, building 8, No. 19, Jugong Road, Xixing street, Binjiang District, Hangzhou City, Zhejiang Province, 310051

Patentee after: ZHEJIANG WANPENG EDUCATION SCIENCE AND TECHNOLOGY STOCK CO.,LTD.

Address before: Room 1406, Hangzhou e-commerce building, 118 Wensan West Road, Xihu District, Hangzhou City, Zhejiang Province, 310013

Patentee before: ZHEJIANG WANPENG EDUCATION SCIENCE AND TECHNOLOGY STOCK CO.,LTD.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 12 / F, building 8, No. 19, Jugong Road, Xixing street, Binjiang District, Hangzhou City, Zhejiang Province, 310051

Patentee after: Zhejiang Wanpeng Digital Intelligence Technology Co.,Ltd.

Address before: 12 / F, building 8, No. 19, Jugong Road, Xixing street, Binjiang District, Hangzhou City, Zhejiang Province, 310051

Patentee before: ZHEJIANG WANPENG EDUCATION SCIENCE AND TECHNOLOGY STOCK CO.,LTD.